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Title: |
US4053576:
System for obtaining hydrogen and oxygen from water using solar energy
[ Derwent Title ]

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Country: |
US United States of America

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Inventor: |
Fletcher, Edward A.; Minneapolis, MN

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Assignee: |
The Regents of the University of Minnesota, Minneapolis, MN
other patents from UNIVERSITY OF MINNESOTA, THE REGENTS OF (599740) (approx. 772)
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Published / Filed: |
1977-10-11
/ 1975-05-19

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Application Number: |
US1975000578404

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IPC Code: |
Advanced:
C01B 3/04;
C01B 13/02;
Core:
C01B 3/00;
more...
IPC-7:
C01B 13/00;

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ECLA Code: |
C01B3/04B2; C01B13/02B2;

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U.S. Class: |
Current:
423/579;
126/684;
422/186;
423/658.2;
Original:
423/579;
023/252.R;
023/260;
423/648.R;

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Field of Search: |
203/DIG. 1
202/234
159/1.5
023/252 R,260
423/648,579

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Priority Number: |
| 1975-05-19 |
US1975000578404 |

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Abstract: |
A system for producing and separating hydrogen and oxygen from water in which water is pumped through a preferentially permeable walled vessel heated to a high temperature by a solar energy concentrator. The water dissociates at high temperatures. Lower molecular weight components, especially hydrogen, diffuse preferentially through the vessel walls and are drawn off and separated. Oxygen may be separated from the products which do not diffuse through the walls by conventional separation techniques. A system is provided for making use of solar energy to produce storable fuels for use during periods of no sunshine.

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Attorney, Agent or Firm: |
Burd, Braddock & Bartz ;

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Primary / Asst. Examiners: |
Vertiz, O. R.; Langel, Wayne A.

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Family: |
None

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First Claim:
Show all 14 claims |
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. Apparatus for obtaining hydrogen and oxygen from water utilizing solar energy, said apparatus comprising:
- A. a water-dissociation chamber having a wall preferentially permeable to the passage of lower molecular weight dissociation components including hydrogen,
- B. means connected to the dissociation chamber for supplying water to said chamber,
- C. solar energy concentrating means focused on said dissociation chamber for heating said chamber to a temperature at which water is dissociated into steam, molecular hydrogen, molecular oxygen, atomic hydrogen, atomic oxygen and hydroxyl,
- D. means connected to the dissociation chamber for withdrawing oxygen enriched dissociation products from said chamber,
- E. a non-permeable casing spaced from and enclosing said dissociation chamber wall and forming a hydrogen enriched dissociation product collection chamber,
- F. means connected to said collection chamber for withdrawing hydrogen enriched dissociation product from said chamber,
- G. cooling means for cooling said oxygen enriched dissociation products and partially liquefying the same, and
- H. gas-liquid separation means for separating gaseous oxygen from the cooled oxygen enriched dissociation products.

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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Forward References: |
Show 16 U.S. patent(s) that reference this one

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